US4920283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed, low noise integrated circuit
Assignee: Texas Instruments Deutschland GmbH
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Filing: 1988-11-16
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Granted: 1990-04-24
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Expires: 2008-11-16
Abstract
Abstract An integrated circuit is described which includes a plurality of output transistors (T1, T2, . . . Tn) for emitting binary signals to associated output terminals (A1, A2, . . . An). The integrated circuit further includes at least one ground terminal (M; M1, M2 . . . Mn). Between the base of each transistor (T1, T2, . . . Tn) and the at least one ground terminal (M; M1, M2, . . . Mn) a current source (R1, D1) controlled by the base voltage is inserted.
Inventors
- 👤 Werner Elmer
- 👤 Michael Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:19
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/003; H03K19/00346; H03K19/00353; H03K17/00; H03K17/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
50 words
Integrated circuit comprising a plurality of output transistors for emitting binary signals to associated output terminals and having at least one ground terminal, characterized in that between a base of each output transistor and the at least one ground terminal a current source controlled by a base voltage is inserted.
Claim 2
Dependent Claim
50 words
Integrated circuit comprising a plurality of output transistors for emitting binary signals to associated output terminals and having at least one ground terminal, characterized in that between a base of each output transistor and the at least one ground terminal a current source controlled by a base voltage is inserted.
Claim 3
Dependent Claim
44 words
Integrated circuit according to claim 1, characterized in that a plurality of separate ground terminals is provided, that emitters of the output transistors are connected to one of the ground terminals and the current sources are connected to one of the other ground terminals.
Claim 4
Dependent Claim
37 words
Integrated circuit according to claim 1, characterized in that the current source is formed by a series circuit of a low-resistance resistor and a diode conducting current in the direction towards the at least one ground terminal.
References Cited (Backward Citations)
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US4825099A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-23 | 1993-10-23 | 1994-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-23 | 1997-10-23 | 1998-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-23 | 2001-10-23 | 2002-04-24 | $7700.00 | Window Closed / Lapsed |